Larry Ellison, Oracle’s co-founder, briefly became the world’s richest man at the start of this year - Justin Sullivan/Getty Traders are ramping up bets against artificial intelligence (AI) darling Oracle by buying financial instruments intended to protect them in the event of a default. The price of Oracle’s credit-default swaps (CDS), financial instruments used to guard against potential non-payment of debts, has spiked in recent weeks to its highest level in three years. The price of the insurance pol ...